Geologic map index of Minnesota : part B, 1953-1970 /
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| Format: | Map |
| Language: | English |
| Published: |
Washington, D.C. :
U.S. Geological Survey,
1972.
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| Item Description: | Includes index and text at margin. Cartographic material. |
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| Physical Description: | 1 map : color ; 68 x 60 cm |